skin and tissues
this term is the Outer layer and is Stratified squamous epithelium.
Epidermis
This receptor is Sensitive to temperatures above 25 degrees C and Unresponsive to temperature above 45 degrees C
Warm
This term lacks blood vessels, is Keratinized, thickest on palms and soles.
Epidermis
This term is called a sudoriferous gland that is widespread in the skin and originates in deeper dermis or hypodermis.
Sweat gland
it regulates body temperature.
This term is the Inner layer, Contains collagenous and elastic fibers
Dermis
This receptor is Sensitive to temperatures between 10 degrees C and 20 degrees C
Cold
This term has Sunlight, UV light from sunlamps, and X-rays
Environmental Factors
What are the 3 parts of the nail
Nail plate, Nail bed, and Lunula
What is the 3rd layer of Skin.
Stratum granulosum
this term is beneath the dermis and is Areolar and adipose
Subcutaneous layer (hypodermis)
this term is Common in epithelial tissues, has the simplest receptors, and Sense itching
Free nerve endings
What are the Five layers of the skin
•Stratum corneum (dead, keratinized cells)
•Stratum lucidum (only in thick skin – palms, soles)
•Stratum granulosum
•Stratum spinosum
Stratum basale (mitotic layer)
this term contains Glands, Hiar follicles, blood vessels, nerve processes, Specialized sensory receptors, and binds epidermis to underlying tissues
Dermis
what is the 2nd layer of skin?
Stratum lucidum
This term is Dilation of dermal blood vessels, Constriction of dermal blood vessels, Accumulation of carotene, and Jaundice
Physiological Factors
This term is Abundant in hairless portions of skin and lips and detects fine touch and texture.
Tactile (Meissner's) corpuscles
This responds to temperature below 10 degrees C and temperature above 45 degrees C
Pain receptors
________ of the body temperature is vitally important because even slight shifts can disrupt rates of metabolic reactions.
Regulation
This term usually is associated with hair follicles, has Holocrine glands, secretes sebum, and is absent on palms and soles
Sebaceous glands
This term is Varying amounts of melanin, Varying size of melanin granules, and albinos lack melanin.
Genetic Factors
This term is Common in deeper subcutaneous tissues, tendons and ligaments. Detect heavy pressure and vibrations.
Lamellated (Pacinian) corpuscles
This term has Epidermal cell, have Tube-like depression and extends into dermis.
Hair follicles
What is the 5th layer of skin?
Stratum Basale (mitotic layer)
What is a Receptive Field?
•The receptive field is the area of skin that, when stimulated, changes the firing rate of a neuron.
–The size of a receptive field depends on the density of receptors in that region of skin.
–There are few receptors in the back and legs, so the receptive fields are large.
–There are many receptors in the fingertips, so the receptive fields are small.
–A small receptive field = greater tactile acuity.